Can't be sure, but I think its a general problem. If you want to try and reproduce it try:
* Start with 14.04 with mysql server installed, configured, and running. * /etc/apparmor.d should contain a profile file usr.sbin.mysqld * Do the upgrade first to 14.10 and then to 15.04 * When doing the upgrades you will be asked if you want to supply a password for mysql server. Just say continue (motivation, you are not trying to change mysqld password) * check /etc/apparmor.d. If it has the old usr.sbin.mysqld (and an uninstalled dist file) you have hit the "bug" The old apparmor (5.5) profile cannot work with the updated (5.6) mysqld. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mysql-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1455773 Title: mysql will not start after 5.5 to 5.6 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.6/+bug/1455773/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs